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Purpose
While peer effects in education have been extensively studied in developed countries, there has been limited investigation of how physical proximity shapes academic achievement in rural educational settings. This study examines peer effects among primary school students in rural China and investigates whether these effects operate differently across student ability levels through distinct mechanisms.

Design/methodology/approach
Data from 2,956 primary school students across rural counties in Shaanxi Province, China, were analyzed. We employ an instrumental variable approach using physical distance between students in classroom seating arrangements to address endogeneity in peer group formation. Study group formation is measured through student-reported study partnerships, while academic performance is assessed using standardized mathematics test scores.

Findings
Study groups significantly enhance student achievement, with heterogeneous effects across ability levels. Middle tercile students show the strongest peer effects (0.318 standard deviations), compared to bottom tercile students (0.241 standard deviations). Mechanism analysis reveals that peer effects operate primarily through improved intrinsic motivation, enhanced self-concept, and reduced academic anxiety among middle-performing students, while effects for bottom tercile students operate through alternative pathways not captured in our measures.

Research limitations/implications
Our findings inform cost-efficient policy interventions in both educational institutions and corporate environments. The evidence indicates that optimizing spatial proximity in peer networks represents an efficient policy instrument for human capital accumulation, particularly valuable in resource-constrained settings, as it leverages existing human capital without substantial additional inputs.

Originality/value
This study provides the first evidence of peer effects using classroom seating arrangements as an identification strategy in a developing country/rural community context. The paper demonstrates that optimizing peer proximity represents a cost-efficient policy instrument for human capital development in resource-constrained rural areas, offering important implications for educational policy in agricultural communities where traditional educational resources are limited.

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China Agricultural Economic Review
Authors
Scott Rozelle
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Caregivers' ability to access, engage with, and critically evaluate digital information on parenting practices (henceforth, “e-parenting literacy”) is emerging as an increasingly important determinant of early childhood development (ECD) outcomes. Therefore, the current study provides empirical evidence of the role of e-parenting literacy for ECD outcomes of 6- to 24-month-olds (N = 564) in rural households in a coastal province in East-China. The study focuses on the role of e-parenting literacy of the two most common types of primary caregivers (i.e., persons in charge of the daily care) of young children in the study region: mother and grandmother caregivers. Empirical results show that 76% of the primary caregivers (N = 429) are mothers, the remaining 135 primary caregivers are grandmothers. Overall, e-parenting literacy is found to be positively and significantly associated with children's early cognitive development outcomes. Furthermore, a heterogeneity analysis shows that e-parenting literacy is positively and significantly associated with children's early cognitive and language outcomes when the primary caregiver is a grandmother, but not when the primary caregiver is a mother. This may reflect greater heterogeneity in grandmothers' digital device use and e-parenting literacy, while most mothers already possess adequate e-parenting skills. Additionally, older children (i.e., 16- to 24-month-olds), who may require more advanced parenting skills than their slightly younger peers, are also found to benefit more from gains in e-parenting literacy. This research highlights how digital inclusion can help to bridge gaps in caregiving practices and developmental opportunities of young children growing up in developing settings.

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International Journal of Social Welfare
Authors
Yun Shen
Scott Rozelle
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Introduction: Longitudinal trends in breastfeeding (BF) are often overlooked in favor of binary or time-to-cessation measures. Characterizing these trends can inform promotion of sustained BF practices. We identified distinct BF profiles among participants of a maternal and child health program.

Methods: The Healthy Future program consisted of community health workers delivering a BF curriculum to mothers through monthly home visits. The program was evaluated in rural Sichuan, China with a cluster-randomized controlled trial (assigned to program versus not). We clustered 6-month postpartum trends (n = 949) of maternal-reported infant feeding using dynamic time warping. For each month, participants were categorized as either exclusive breastfeeding (EBF), mixed feeding (MF, feeding breastmilk plus other foods or liquids), or not breastfeeding (NBF). After identifying clusters, we regressed BF profiles on intervention assignment using adjusted multinomial logistic regression.

Results: Cluster analysis revealed seven profiles: always EBF, always MF, never breastfed, EBF until the 5th month, MF until the 5th month, mostly EBF, and NBF from the 3rd month. The intervention was associated with improved odds of always EBF (ROR = 2.61, 95% CI 1.25, 5.42), MF until the 5th month (ROR = 2.52, 95% CI 1.18, 5.39), and NBF from the 3rd month (ROR = 2.82, 95% CI 1.16, 6.87) compared to being never breastfed. Mothers in the never breastfed cluster had the lowest age, education, BF knowledge and attitudes, and decision-making power.

Discussion: Cluster analyses found the intervention significantly improved EBF, particularly in mothers characterized by higher baseline educational attainment and BF knowledge. Targeted efforts are needed to help mothers initiate EBF from birth and continue EBF through month 6.

Journal Publisher
Frontiers in Public Health
Authors
Yunwei Chen
Gary Darmstadt
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The rise of social media in the digital era poses unprecedented challenges to authoritarian regimes that aim to influence public attitudes and behaviors. To address these challenges, we argue that authoritarian regimes have adopted a decentralized approach to produce and disseminate propaganda on social media. In this model, tens of thousands of government workers and insiders are mobilized to produce and disseminate propaganda, and content flows in a multidirectional, rather than a top-down manner. We empirically demonstrate the existence of this new model in China by creating a novel data set of over five million videos from over 18,000 regime-affiliated accounts on Douyin, a popular social media platform in China. This paper supplements prevailing understandings of propaganda by showing theoretically and empirically how digital technologies are transforming not only the content of propaganda, but also how propaganda materials are produced and disseminated.

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American Journal of Political Science
Authors
Jennifer Pan
Yiqing Xu
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A growing body of research on large language models (LLMs) has identified various biases, primarily in contexts where biases reflect societal patterns. This article focuses on a different source of bias in LLMs—government censorship. By comparing foundation models developed in China and those from outside China, we find substantially higher rates of refusal to respond, shorter responses, and inaccurate responses to a battery of 145 political questions in China-originating models. These disparities diminish for less-sensitive prompts, showing that technological and market differences cannot fully explain this divergence. While all models exhibit higher refusal to respond rates with Chinese-language prompts than English ones, language differences are less pronounced than disparities between China-originating and non-China-originating models. We caution that our study is observational and cross-sectional and does not establish a causal linkage between regulatory pressures and censorship behaviors of China-originating LLMs, but these results suggest that censorship through government regulation requiring companies to restrict political content may be an important factor contributing to political bias in LLMs.

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PNAS Nexus
Authors
Jennifer Pan
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This article studies whether pure legality, stripped of normative components that are central to the rule of law, can convey perceived legitimacy to governmental institutions and activity. Through a survey experiment conducted among urban Chinese residents, it examines whether such conveyance is possible under current sociopolitical conditions in which the party-state continues to invest in pure legality without imposing legal checks on the party leadership’s political power and without corresponding investment in substantive rights or freedoms. Among survey respondents, government investment in professional and consistent law enforcement conveys meaningful amounts of political legitimacy. In fact, it does so even when it supports government activity, such as censorship of online speech, that is freedom depriving and socially controversial and even when such investment does not necessarily enhance the external predictability of state behavior. However, the legitimacy-enhancing effects of pure legality are likely weaker than those of state investment in procedural justice.

Journal Publisher
The Journal of Legal Studies
Authors
Yiqing Xu
Authors
Heather Rahimi
Hanwen Zhang
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On March 27–29, 2026, researchers, policymakers, and practitioners from across China, the United States, and Europe gathered at the Irish College Leuven for the third annual International Symposium on Early Childhood Development in Rural China. Co-sponsored by KU Leuven and the Stanford Rural Education Action Program (REAP), the three-day event brought together leading voices in early childhood development (ECD) to cultivate connections, share evidence, exchange perspectives, and explore pathways for scaling effective interventions to improve child development in rural communities.

Presentations and discussions over the two days coalesced around several interconnected themes: reaching families through China's existing primary healthcare infrastructure, supporting the caregivers at the heart of child development, scaling proven interventions through technology and implementation science, and translating research into meaningful policy action.

Reaching Families Through Primary Healthcare


China's primary healthcare system is both far-reaching and well-structured, and a growing body of research suggests it represents one of the most promising vehicles for delivering ECD interventions to families in rural areas. A central thread running through the symposium was that the infrastructure already exists; the challenge lies in making better use of it. This view was echoed by local pediatricians and preventative care representatives among the attendees, who brought frontline perspectives to the conversation.

Presentations from researchers at Shanghai Jiao Tong University explored how caregiver training group activities can be embedded within routine primary child healthcare services, and how digital technologies can be deployed within clinic settings to extend the reach and consistency of ECD support. Research from Zhejiang University complemented this by examining how child growth monitoring, a standard feature of preventive care, can be strengthened as both an evidence base and a practical touchpoint for developmental support.

Not only are preventive care and early intervention more cost-effective than reactive approaches in the long run, but they also provide better safeguards for the wellbeing of mothers and children. China's existing primary care infrastructure has the potential to deliver such preventive care at scale.

Supporting Children by Supporting Caregivers


Another strong theme presented was the importance of directing attention and resources toward caregivers themselves, not only the children in their care. This focus is central to REAP's own intervention work, and it was reflected throughout the symposium's presentations and discussions. Multiple speakers highlighted that the wellbeing, knowledge, and confidence of parents and other caregivers are among the most important determinants of early childhood outcomes.

Importantly, conversations went beyond training primary caregivers of children, who in Chinese households are typically mothers or grandmothers . Speakers discussed how to help different caregivers work together more effectively, and how to bring other family members — especially fathers and other male relatives — more meaningfully into the picture. This broader conception of caregiver support recognizes that child development happens within families and households, not just in the hands of a primary caregiver.

Several presentations underscored the need for integrated approaches that treat caregiver mental health and wellbeing as a core component of ECD programming rather than an afterthought, with evidence suggesting that well-designed interventions can produce durable changes in caregiver behavior and child outcomes. Research on complementary feeding practices added a further dimension, demonstrating how behavioral nudge approaches can shift caregiving practices around infant nutrition. The consistent message across these sessions was that investing in caregivers is investing in children.

Scaling What Works: The Role of Technology and Implementation Science


Perhaps the most forward-looking dimension of the symposium concerned the question of scale. A recurring challenge in ECD research is the gap between what works in controlled settings and what can be sustained and expanded across vast, heterogeneous rural populations. In a country as large as China, even the most cost-effective intervention will fall short of its potential without government funding and commitment to sustain it. Several presentations tackled this challenge directly, with a shared understanding that the responsibility of researchers is not only to develop effective programs, but to build the evidence base that demonstrates their value to policymakers.

Researchers from Stanford University presented findings from  two randomized controlled trials, examining how digital support tools and group parenting models can help upscale parenting interventions while retaining their effectiveness. A presentation from Sean Sylvia at the University of North Carolina, Chapel Hill introduced the Healthy Future Platform, which uses AI-enhanced curriculum delivery to support community health workers. The researchers share the vision that technology can deliver behavioral interventions more consistently and better tailor them to the needs of individuals.

Implementation science featured prominently too, with researchers presenting a framework for evaluating ECD programs not just on their outcomes but on the conditions that enable real-world adoption. Complementing this, cost-effectiveness analysis from researchers at Shanghai Jiao Tong University offered policymakers a concrete basis for prioritizing investments in primary-level ECD support — an increasingly important contribution as the field makes its case for government-backed scale-up.

Policy Dialogue: Building Bridges Between Evidence and Action


The symposium brought together not only academics but analysts from China's National Health Commission and other implementing organizations. This mix of voices gave the event a practical orientation that went beyond the research findings themselves. The participation of government representatives was itself a meaningful signal, reflecting both the importance China places on ECD and a genuine openness to hearing what scientists have to say about how to improve outcomes for young children and their families.

Discussions returned repeatedly to the question of how evidence generated in research settings can be translated into durable government policy and frontline practice. The presence of international participants underscored the global relevance of the questions being asked, and the value of cross-national dialogue in shaping the field.

Looking Ahead


The formal program of the symposium closed on March 28, but conversations continued on March 29 as participants strengthened old friendships and formed new connections on the group visit to Brussels. These conversations reflected a shared recognition that the challenges ahead — scaling proven interventions, sustaining political commitment, and bridging research and practice — require not just strong evidence, but strong networks of people committed to acting on it.



About the Organizers


The Stanford Rural Education Action Program (REAP) conducts research aimed at improving the lives of rural residents in China, with a particular focus on education, health, and early childhood development. KU Leuven is one of Europe's leading research universities and a longstanding partner in international development research.

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The symposium brought together leading voices in early childhood development from across the world to cultivate connections, share evidence, exchange perspectives, and explore pathways for scaling effective interventions to improve child development in rural China.

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Skyline Scholars Series


Tuesday, April 14, 2026 | 12:00 pm -1:30 pm Pacific Time
Goldman Room E409, Encina Hall, 616 Jane Stanford Way

Registration for this seminar is now closed. 



Measuring Judicial Biases with Artificial Intelligence: Evidence from Chinese IP Litigations


How does judicial fairness in intellectual property (IP) litigations shape the incentives to innovate? This talk examines local bias in IP litigation and its consequences for firm-level innovation in China.

Using a dataset from China Judgements Online on Chinese IP court decisions from 2014–2020, a striking puzzle emerges: despite widespread concerns about local protectionism, non-local plaintiffs frequently win at higher rates than local ones. Two competing forces explain this — a "local protectionism effect," whereby local fiscal incentives bias courts toward local firms, and a "picket fence effect," whereby litigants anticipate bias and self-select out of bringing cases, quietly distorting the pool of disputes that reach the courtroom.

To cut through this identification challenge, researchers train an LLM–based "AI court'' on cases in which both plaintiff and defendant are non-local for which the incentives of local courts to bias either side are absent, generating counterfactual fair win-rates for all other disputes. Comparing observed and predicted win-rates reveals significant judicial bias. A 2019 reform centralizing appellate jurisdiction over a subset of IP cases, namely the technical cases, directly to the National Supreme Court shows that stronger central supervision substantially improves judicial accuracy and curtails bias — and measurably increases firm innovation.

The findings underscore that impartial courts are not just a procedural ideal, but a concrete driver of economic dynamism.



About the Speaker 
 

Hanming Fang

Professor Hanming Fang is an applied microeconomist with broad theoretical and empirical interests focusing on public economics. He is the Norman C. Grosman Professor of Economics at the University of Pennsylvania and a Skyline Scholar (April 2026) at the Stanford Center on China’s Economy and Institutions. His research integrates rigorous modeling with careful data analysis and has focused on the economic analysis of discrimination; insurance markets, particularly life insurance and health insurance; and health care, including Medicare. In his research on discrimination, Professor Fang has designed and implemented tests to examine the role of prejudice in racial disparities in matters involving search rates during highway stops, treatments received in emergency departments, and racial differences in parole releases. In 2008, Professor Fang was awarded the 17th Kenneth Arrow Prize by the International Health Economics Association (iHEA) for his research on the sources of advantageous selection in the Medigap insurance market.

Professor Fang is currently working on issues related to insurance markets, particularly the interaction between the health insurance reform and the labor market. He has served as co-editor for the Journal of Public Economics and International Economic Review, and associate editor in numerous journals, including the American Economic Review.

Professor Fang received his Ph.D. in Economics from the University of Pennsylvania in 2000. Before joining the Penn faculty, he held positions at Yale University and Duke University.  He is a research associate at the National Bureau of Economic Research, where he served as the acting director of the Chinese Economy Working Group from 2014 to 2016. He is also a research associate of the Population Studies Center and Population Aging Research Center, and a senior fellow at the Leonard Davis Institute of Health Economics at the University of Pennsylvania.



Questions? Contact Xinmin Zhao at xinminzhao@stanford.edu
 


Goldman Room E409, Encina Hall

Hanming Fang, Skyline Scholar (2026); Professor of Economics, University of Pennsylvania
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The China Business Conundrum book cover by Kenneth Wilcox.

Headlines about foreign companies establishing a foothold in China only to fail years later no longer surprise anyone. But why does this keep happening? Kenneth Wilcox, former CEO of Silicon Valley Bank (SVB) from 2001 to 2010 and author of The China Business Conundrum: Ensure that Win-Win Doesn't Mean Western Companies Lose Twice, argues that the answer comes down to mental models and preparation.

In a recent lecture hosted by the Stanford Center on China's Economy and Institutions, Wilcox explained that we all develop mental models — internal frameworks that help us interpret and navigate the world around us. We carry these models with us wherever we go, applying them instinctively to new situations and environments. The trouble, Wilcox argues, is that a mental model only holds up if the new environment resembles the one it was built for. And American mental models, more often than not, simply don't hold up in China.

Kenneth Wilcox headshot

Wilcox knows this firsthand. After a decade leading SVB, he and his wife moved to China in 2011 to open a Chinese branch of the bank. Things started smoothly enough — he secured a partnership with Shanghai Pudong Development Bank and obtained the necessary license — but it quickly became clear that the rules he'd spent his career following no longer applied. The license, for instance, permitted him to open the bank but barred him from conducting any business in renminbi, China's national currency, for the first three years. For a bank, this created an obvious problem: how do you pay staff, let alone operate, without access to local currency? The government's solution was a subsidy to cover operating costs during that period, along with an invitation to meet regularly with other banks and business leaders to share SVB's model and approach. After many such meetings, Wilcox's Chinese partners told him they had been so impressed with what they'd learned that they planned to open their own bank modeled on SVB's approach.

This, Wilcox explained, is a pattern that plays out with striking regularity in China. Foreign companies are lured in with the promise of a vast new market and eager local partners. They are then entangled in regulations and bureaucracy, kept afloat with subsidies while they wait for permission to operate more freely — all while their technology and intellectual property are quietly absorbed. Eventually, the foreign company is left with little choice but to close up and leave. Some companies see it happening but look the other way. Others don't recognize it until it's too late. Many never fully understand why they failed at all.

Wilcox traced all of this back to the limitations of mental models. American businesses tend to arrive in China assuming the environment will function more or less like home: keep your head down, stay out of politics, focus on the business, and you'll be fine. But that assumption doesn't hold in China, where the government and the Communist Party exert control over virtually every aspect of commercial life. The most powerful players routinely hold simultaneous roles — party member, bank executive, government official — all at once. It is precisely these unexamined assumptions, Wilcox concluded, that set so many Western ventures up to fail before they've even begun.

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Former Silicon Valley Bank CEO Kenneth Wilcox draws on his own experience launching SVB in China to illustrate how Western companies repeatedly fail in China because they rely on mental models built for home — assumptions about business, government, and rule of law that simply don't apply in the Chinese market.

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Encina Hall East, 4th Floor, E405
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Joshua Rosenzweig serves as Stanford Center on China's Economy and Institutions' Senior Associate Director, overseeing the center’s operations and administration. Before Stanford, Josh spent over a decade in Hong Kong, holding a series of leadership roles at Amnesty International's East Asia Regional Office. As Head of Office, he had executive oversight of operations for a team of 25–30 staff, and, as Deputy Regional Director, he directly managed teams of researchers and led the organization's Greater China program. He has also led research projects on labor practices in Chinese supply chains and on China's criminal justice system. Josh holds a Ph.D. in China Studies from the Chinese University of Hong Kong and speaks Mandarin at an advanced professional level.

Senior Associate Director, Stanford Center on China's Economy and Institutions
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